Linear galaxy bias, b₁, as a function of redshift for Hα emitters in the Flagship simulation. In blue we show the estimation from the fit to the two-point correlation function multipoles in redshift space using the EFT model. In orange, we use linear theory in real space to fit the correlation function monopole. Finally, in green we fit the real- space monopole of the power spectrum using EFT at one-loop order. The colour bands show the 1 σ confidence regions of the linear bias.